<template>
  <view class="my-settle-container">
    <!-- 全选 -->
    <label class="radio" @click="changeAllState">
      <radio color="#C00000" :checked="isFullCheck"/><text>全选</text>
    </label>
    
    <!-- 合计 -->
    <view class="amount-box">
      合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
    </view>
    <!-- 结算 -->
    <view class="btn-settle">结算（{{checkedCount}}）</view>
  </view>
</template>

<script>
  import {mapGetters,mapMutations} from 'vuex'
  export default {
    name:"my-settle",
    data() {
      return {
        
      };
    },
    computed:{
      ...mapGetters('m_cart',['checkedCount','total','checkedGoodsAmount']),
      //是否全选
      isFullCheck(){
        return this.total == this.checkedCount
      }
    },
    methods:{
      // 2. 使用 mapMutations 辅助函数，把 m_cart 模块提供的 updateAllGoodsState 方法映射到当前组件中使用
      ...mapMutations('m_cart', ['updateAllGoodsState']),
      changeAllState(){
        // 修改购物车中所有商品的选中状态
        // !this.isFullCheck 表示：当前全选按钮的状态取反之后，就是最新的勾选状态
        this.updateAllGoodsState(!this.isFullCheck)
      }
    }
  }
</script>

<style lang="scss">
.my-settle-container{
  //底部固定定位
  position: fixed;
  bottom: 0;
  left: 0;
  //设置宽度、高度和背景色
  width: 100%;
  height: 50px;
  background-color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 5px;
  font-size: 14px;
  
  .radio{
    display: flex;
    align-items: center;
  }
  .amount{
    color: #c00000;
    font-weight: bold;
  }
  .btn-settle{
    background-color: #C00000;
    height: 50px;
    min-width: 100px;
    line-height: 50px;
    color: white;
    font-weight: bold;
    text-align: center;
    padding: 0 5px;
    z-index: 10000;
  }
}
</style>
